Prism

Quantum3Labs

About this app

As a foreigner staying in Vietnam, you only have two ways to make payment: cash or card. Cash runs out fast and cards are rarely accepted, but every cafe, street food stall, coffee shop, and even luxury restaurants take QR codes. Those QR codes only work with a Vietnamese bank account, leaving you stuck with cash and card every time you buy something.

Prism fixes that.

Prism is a dollar wallet built for foreigners in Vietnam. Fund it with USDC on Base, then pay any local QR code instantly. Your balance is shown in US dollars, and we convert at the live exchange rate at the moment you pay.

1. Fund your wallet
Send USDC on Base from any exchange or wallet you already use. Funds arrive in seconds.

2. Pay like a local
Scan any QR code at restaurants, cafes, markets, supermarkets, ride apps, and street vendors. No card, no foreign transaction fees, no fees on the merchant side.

Who Prism is for:
1. Expats living and working in Vietnam who hold USDC
2. Digital nomads who get paid in USDC and base themselves in Vietnam
3. Travelers who want to skip the ATM and pay like a local

What’s new

Pay with dollars in Vietnam and Peru.

Hold USDC and pay any VietQR, Yape or Plin code. No local bank account needed.

Earn: put USDC into a fund of short-term US Treasury bills, run by Pods
Finance. Rates change and returns are not guaranteed.

Send USDC to any wallet instantly.

Also: Vietnamese and Spanish, travel plans for Vietnam, and a clearer payment
history.